Bowling terms and symbols:

Strike: All ten pins down on the first ball (marked on the scoresheet with an "X").

Spare: All pins down with two balls (marked on the scoresheet with a "/") .

Split: A spare leave in which the headpin is down and the remaining combination of pins have an intermediate pin down immediately ahead of or between them. (hole, railroad)

Miss: A missed spare. (blow, error, open)

Foul: Touching or going beyond the foul line at delivery.

Foul line: The mark that determines the beginning of the lane, 60' this side of the head pin, where the gutters start. Usually red. Has detector lights ("foul lights") and a buzzer to alert your team and opponents to your clumsiness. Crossing it gets you a count of zero for that ball and, if on the first ball, a shot at a new rack of pins.